Waist cushion with adjustable radian

Abstract

The utility model relates to the technical field of waist rests, in particular to a radian-adjustable waist rest which comprises a supporting frame, a shoulder supporting main body, a waist supporting main body and a caudal vertebra supporting main body, and the shoulder supporting main body, the waist supporting main body and the caudal vertebra supporting main body are arranged on the front face of the supporting frame from top to bottom and form a leaning part. A radian adjusting mechanism is installed on the supporting frame, and the radian adjusting mechanism adjusts the radian of the leaning part by adjusting the pitching angle of the waist supporting body; in practical application, the pitching angle of the waist support main body is adjusted through the radian adjusting mechanism, so that the support curve radian of the leaning part is adjusted, and the applicability is better; the supporting curve radian can be adjusted, and the waist supporting device is suitable for waist supporting of different crowds.

Description

Technical Field

[0001] This utility model relates to the field of lumbar support technology, specifically an adjustable lumbar support. Background Technology

[0002] Office workers often sit for long periods, and to prevent lumbar disc herniation and other lumbar spine problems caused by outward curvature of the lumbar spine, many now prefer to install lumbar supports on their office chairs. These supports provide back support and prevent the lumbar spine from bending outward due to fatigue, thus protecting the health of the lumbar spine. For comfort, chair backs are designed to resemble the curve of the human spine. However, the curvature of each person's spine is different, so if a lumbar support is not adjustable, it is difficult to provide adequate support for the lower back of different individuals. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned shortcomings by providing an adjustable lumbar support that can adjust the curvature of the support curve, making it suitable for lumbar support use by different groups of people.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An adjustable lumbar support includes a support frame, and a shoulder support body, a lumbar support body, and a coccyx support body arranged from top to bottom on the front of the support frame. The shoulder support body, the lumbar support body, and the coccyx support body form a backrest. An arc adjustment mechanism is installed on the support frame. The arc adjustment mechanism adjusts the arc of the backrest by adjusting the pitch angle of the lumbar support body.

[0006] Furthermore, the curvature adjustment mechanism includes a back plate fixed to the front of the support frame, an adjustment plate rotatably connected to the back plate at its bottom end, a U-shaped groove fixed to the back plate, a slider slidably connected to the U-shaped groove, a motor fixed at the opening of the U-shaped groove, a lead screw driven to the output shaft of the motor, an internal threaded hole on the slider facing the lead screw, through grooves symmetrically arranged on the vertical part of the U-shaped groove, a sliding column slidably connected in the through groove, one end of the sliding column fixed to the slider, and a connecting rod rotatably connected to the other end of the sliding column, the end of the connecting rod away from the sliding column rotatably connected to the adjustment plate, and the waist support body fixed to the front of the adjustment plate.

[0007] Furthermore, an upper connecting seat is symmetrically arranged on the back of the upper end of the adjustment plate, and a lower connecting seat is symmetrically arranged on the back of the lower end. The upper connecting seat is rotatably connected to the connecting rod through a rotating shaft one, and the lower connecting seat is rotatably connected to the back plate through a rotating shaft two.

[0008] Furthermore, the front of the lumbar support body is an arc-shaped support plate; in this embodiment, the arc-shaped support plate ensures that the lumbar support body can still provide good support after the pitch angle is adjusted.

[0009] Furthermore, the support frame is symmetrically provided with straps on both sides, and the ends of the straps are connected by buckles or Velcro.

[0010] Furthermore, it also includes a controller, wherein the arc adjustment mechanism is electrically connected to the controller.

[0011] The beneficial effects of this utility model are:

[0012] In practical applications, the pitch angle of the lumbar support body can be adjusted by the curvature adjustment mechanism, thereby adjusting the curvature of the support curve of the backrest, making it more adaptable. This utility model can adjust the curvature of the support curve, making it suitable for lumbar support use by different groups of people. Attached Figure Description

[0013] Figure 1 This is the front view of this utility model;

[0014] Figure 2 This is a side view of the present invention;

[0015] Figure 3 This is a structural schematic diagram of the arc adjustment mechanism and the waist support body in this utility model. Detailed Implementation

[0016] like Figure 1 , Figure 2 and Figure 3 As shown, an adjustable lumbar support includes a support frame 1, and a shoulder support body 2, a lumbar support body 3, and a coccyx support body 4 arranged from top to bottom on the front of the support frame 1. The shoulder support body 2, the lumbar support body 3, and the coccyx support body 4 form a backrest. An arc adjustment mechanism is installed on the support frame 1. The arc adjustment mechanism adjusts the arc of the backrest by adjusting the pitch angle of the lumbar support body 3.

[0017] In use, the pitch angle of the lumbar support body 3 can be adjusted by the curvature adjustment mechanism, thereby adjusting the curvature of the support curve of the leaning part, making it more adaptable; this utility model can adjust the curvature of the support curve, making it suitable for lumbar support use by different groups of people.

[0018] like Figure 1 , Figure 2 and Figure 3As shown, the arc adjustment mechanism includes a back plate 51 fixed to the front of the support frame 1, an adjustment plate 52 rotatably connected to the back plate 51 at its bottom end, a U-shaped groove 53 fixed to the back plate 51, a slider 54 slidably connected to the U-shaped groove 53, a motor 55 fixed at the opening of the U-shaped groove 53, a lead screw 56 driven by the output shaft of the motor 55, an internal threaded hole on the slider 54 opposite to the lead screw 56, and through grooves 531 symmetrically arranged on the vertical part of the U-shaped groove 53, with sliding columns 57 slidably connected in the through grooves 531. One end of the sliding column 57 is fixed to the slider 54, and the other end of the sliding column 57 is rotatably connected to the connecting rod 58. The end of the connecting rod 58 away from the sliding column 57 is rotatably connected to the adjusting plate 52. The waist support body 3 is fixed on the front of the adjusting plate 52. In this embodiment, during the rotation of the lead screw 56 driven by the motor 55, the lead screw 56 drives the slider 54 to slide along the slider 54 through the internal thread hole. The slider 54 adjusts the pitch angle of the adjusting plate 52 through the sliding column 57 and the connecting rod 58, thereby adjusting the pitch angle of the waist support body 3 and thus adjusting the support curve arc of the backrest.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, an upper connecting seat 521 is symmetrically arranged on the back of the upper end of the adjusting plate 52, and a lower connecting seat 522 is symmetrically arranged on the back of the lower end. The upper connecting seat 521 is rotatably connected to the connecting rod 58 through a first rotating shaft 523, and the lower connecting seat 522 is rotatably connected to the back plate 51 through a second rotating shaft. In this embodiment, the upper end of the adjusting plate 52 is rotatably connected to the connecting rod 58 through the first rotating shaft 523 and the upper connecting seat 521, and the lower end of the adjusting plate 52 is rotatably connected to the back plate 51 through the second rotating shaft and the lower connecting seat 522.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the front of the waist support body 3 is an arc-shaped support plate; in this embodiment, the arc-shaped support plate ensures that the waist support body 3 can still provide good support after the pitch angle is adjusted.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the support frame 1 has symmetrical straps 6 on both sides, and the ends of the straps 6 are connected by buckles or Velcro. In this embodiment, the straps 6 are connected by buckles or Velcro to facilitate the support frame 1 being fixed on the office chair.

[0022] like Figure 1 , Figure 2 and Figure 3As shown, it also includes a controller, and the arc adjustment mechanism is electrically connected to the controller; in this embodiment, the arc adjustment mechanism is controlled by the controller.

[0023] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.

Claims

1. An adjustable-rake lumbar support, characterized by: The support frame is provided with a shoulder support body, a waist support body and a coccyx support body from top to bottom on the front of the support frame, and the shoulder support body, the waist support body and the coccyx support body form a leaning part; an arc adjusting mechanism is installed on the support frame; the arc adjusting mechanism adjusts the arc of the leaning part by adjusting the pitch angle of the waist support body.

2. An arc-adjustable lumbar support according to claim 1, wherein, The arc adjusting mechanism comprises a back plate fixed on the front of the support frame, an adjusting plate rotatably connected to the bottom end of the back plate, a U-shaped groove fixed on the back plate, a sliding block slidably connected in the U-shaped groove, a motor fixed on the opening of the U-shaped groove, a lead screw drivingly connected to the output shaft of the motor, an internal thread hole provided on the sliding block opposite to the lead screw, a through groove symmetrically provided on the vertical part of the U-shaped groove, a sliding column slidably connected in the through groove, one end of the sliding column fixed on the sliding block, the other end of the sliding column rotatably connected to a connecting rod, the end of the connecting rod away from the sliding column rotatably connected to the adjusting plate, and the waist support body fixed on the front of the adjusting plate.

3. An arc-adjustable lumbar support according to claim 2, wherein, Upper connecting seats are symmetrically provided on the back of the upper end of the adjusting plate, lower connecting seats are symmetrically provided on the back of the lower end of the adjusting plate, the upper connecting seats are rotatably connected to the connecting rod through a rotating shaft one, and the lower connecting seats are rotatably connected to the back plate through a rotating shaft two.

4. An arc-adjustable lumbar support according to claim 1, wherein The front of the waist support body is a circular arc support plate.

5. An arc- adjustable lumbar support as defined in claim 1, wherein, Belt bodies are symmetrically provided on the two sides of the support frame, and the end of the belt body is connected through buckles or magic tapes.

6. An arc-adjustable lumbar support according to claim 1, wherein, A controller is further provided, and the arc adjusting mechanism is electrically connected to the controller.

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